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1600 Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide

42 Synchronizing Acquisitions

# How it works:

# - The :DIGitize command is a blocking command, and thus, all

# other SCPI commands are blocked until :DIGitize is completely

# done. This includes any subsequent processing that is already

# set up, such as math and measurements.

# KEY POINT: However, :DIGitize does not prevent additional

# commands from being sent to the queue or cause the remote

# program to wait. For example, if your program does something

# like:

# KsInfiniiVisionX.write(":DIGitize")

# print("Signal acquired.\n")

# The "Signal acquired" message will be written immediately

# after the :DIGitize is sent, not after the acquisition and

# processing is complete.

# To pause the program until the :DIGitize is complete, you must

# wait for a query result after the :DIGitize. For example, in

# this case:

# query_result = KsInfiniiVisionX.query(":DIGitize;*OPC?")

# print("Signal acquired.\n")

# The "Signal acquired" message will be written after the

# acquisition and processing is complete. The *OPC? query is

# appended to :DIGitize with a semi-colon (;), which

# essentially ties it to the same thread in the parser. It is

# immediately dealt with once :DIGitize finishes and gives a "1"

# back to the program (whether the program uses it or not),

# allowing the program to move on.

# Other Notes:

# - If you DO NOT know when a trigger will occur, you should set a

# very long timeout.

# - The timeout should be adjusted before and after the :DIGitize

# operation, though this is not absolutely required.

# - A :DIGitize can be aborted with a device clear, which also

# stops the oscilloscope:

# KsInfiniiVisionX.clear()

# - :DIGItize disables the anti-aliasing feature (sample rate

# dither) on all InfiniiVision and InfiniiVision X-Series

# oscilloscopes.

# - :DIGitize temporarily blocks the front panel, and all front

# panel presses are queued until :DIGitize is done. So if you

# change the vertical scale, it will not happen until the

# acquisition is done.

# The exception is that the Run/Stop button on the front panel

Brand	Keysight Technologies
Model	InfiniiVision 4000 X Series
Category	Test Equipment
Language	English

Keysight Technologies InfiniiVision 4000 X Series User Manual

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Keysight Technologies InfiniiVision 4000 X Series Specifications

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